mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 18:06:43 +07:00
5a39837f76
* 'stable/irq.fairness' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: events: Remove redundant clear of l2i at end of round-robin loop
xen: events: Make round-robin scan fairer by snapshotting each l2 word once only
xen: events: Clean up round-robin evtchn scan.
xen: events: Make last processed event channel a per-cpu variable.
xen: events: Process event channels notifications in round-robin order.
* 'stable/irq.ween_of_nr_irqs' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: events: Fix compile error if CONFIG_SMP is not defined.
xen: events: correct locking in xen_irq_from_pirq
xen: events: propagate irq allocation failure instead of panicking
xen: events: do not workaround too-small nr_irqs
xen: events: remove use of nr_irqs as upper bound on number of pirqs
xen: events: dynamically allocate irq info structures
xen: events: maintain a list of Xen interrupts
xen: events: push setup of irq<->{evtchn,ipi,virq,pirq} maps into irq_info init functions
xen: events: turn irq_info constructors into initialiser functions
xen: events: use per-cpu variable for cpu_evtchn_mask
xen: events: refactor GSI pirq bindings functions
xen: events: rename restore_cpu_pirqs -> restore_pirqs
xen: events: remove unused public functions
xen: events: fix xen_map_pirq_gsi error return
xen: events: simplify comment
xen: events: separate two unrelated halves of if condition
Fix up trivial conflicts in drivers/xen/events.c
98 lines
3.2 KiB
C
98 lines
3.2 KiB
C
#ifndef _XEN_EVENTS_H
|
|
#define _XEN_EVENTS_H
|
|
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <xen/interface/event_channel.h>
|
|
#include <asm/xen/hypercall.h>
|
|
#include <asm/xen/events.h>
|
|
|
|
int bind_evtchn_to_irq(unsigned int evtchn);
|
|
int bind_evtchn_to_irqhandler(unsigned int evtchn,
|
|
irq_handler_t handler,
|
|
unsigned long irqflags, const char *devname,
|
|
void *dev_id);
|
|
int bind_virq_to_irq(unsigned int virq, unsigned int cpu);
|
|
int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
|
|
irq_handler_t handler,
|
|
unsigned long irqflags, const char *devname,
|
|
void *dev_id);
|
|
int bind_ipi_to_irqhandler(enum ipi_vector ipi,
|
|
unsigned int cpu,
|
|
irq_handler_t handler,
|
|
unsigned long irqflags,
|
|
const char *devname,
|
|
void *dev_id);
|
|
int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
|
|
unsigned int remote_port,
|
|
irq_handler_t handler,
|
|
unsigned long irqflags,
|
|
const char *devname,
|
|
void *dev_id);
|
|
|
|
/*
|
|
* Common unbind function for all event sources. Takes IRQ to unbind from.
|
|
* Automatically closes the underlying event channel (even for bindings
|
|
* made with bind_evtchn_to_irqhandler()).
|
|
*/
|
|
void unbind_from_irqhandler(unsigned int irq, void *dev_id);
|
|
|
|
void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector);
|
|
int resend_irq_on_evtchn(unsigned int irq);
|
|
void rebind_evtchn_irq(int evtchn, int irq);
|
|
|
|
static inline void notify_remote_via_evtchn(int port)
|
|
{
|
|
struct evtchn_send send = { .port = port };
|
|
(void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send);
|
|
}
|
|
|
|
void notify_remote_via_irq(int irq);
|
|
|
|
void xen_irq_resume(void);
|
|
|
|
/* Clear an irq's pending state, in preparation for polling on it */
|
|
void xen_clear_irq_pending(int irq);
|
|
void xen_set_irq_pending(int irq);
|
|
bool xen_test_irq_pending(int irq);
|
|
|
|
/* Poll waiting for an irq to become pending. In the usual case, the
|
|
irq will be disabled so it won't deliver an interrupt. */
|
|
void xen_poll_irq(int irq);
|
|
|
|
/* Poll waiting for an irq to become pending with a timeout. In the usual case,
|
|
* the irq will be disabled so it won't deliver an interrupt. */
|
|
void xen_poll_irq_timeout(int irq, u64 timeout);
|
|
|
|
/* Determine the IRQ which is bound to an event channel */
|
|
unsigned irq_from_evtchn(unsigned int evtchn);
|
|
|
|
/* Xen HVM evtchn vector callback */
|
|
void xen_hvm_callback_vector(void);
|
|
extern int xen_have_vector_callback;
|
|
int xen_set_callback_via(uint64_t via);
|
|
void xen_evtchn_do_upcall(struct pt_regs *regs);
|
|
void xen_hvm_evtchn_do_upcall(void);
|
|
|
|
/* Allocate a pirq for a physical interrupt, given a gsi. */
|
|
int xen_allocate_pirq_gsi(unsigned gsi);
|
|
/* Bind a pirq for a physical interrupt to an irq. */
|
|
int xen_bind_pirq_gsi_to_irq(unsigned gsi,
|
|
unsigned pirq, int shareable, char *name);
|
|
|
|
#ifdef CONFIG_PCI_MSI
|
|
/* Allocate a pirq for a MSI style physical interrupt. */
|
|
int xen_allocate_pirq_msi(struct pci_dev *dev, struct msi_desc *msidesc);
|
|
/* Bind an PSI pirq to an irq. */
|
|
int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
|
|
int pirq, int vector, const char *name);
|
|
#endif
|
|
|
|
/* De-allocates the above mentioned physical interrupt. */
|
|
int xen_destroy_irq(int irq);
|
|
|
|
/* Return irq from pirq */
|
|
int xen_irq_from_pirq(unsigned pirq);
|
|
|
|
#endif /* _XEN_EVENTS_H */
|